Merge "libhwui: Use Vulkan by default" into main am: 822a45e2

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2819917



Change-Id: I4b46e843d010ff1f41764fa647b011c4daecb232
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>